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(19)

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2 533 294

(13)

(51)

IPC

C22B23/00(2006-01-01)

C22B15/00(2006-01-01)

C22B1/02(2006-01-01)

C22B3/04(2006-01-01)

(21) (22)

Application

2013117282/02, 2013-04-16

(24)

Start date

2013-04-16

(22)

Actual filing date

2013-04-16

(45)

Published

2014-11-20

(72)

Inventor

Medvedev Aleksandr SergeevichAleksandrov Pavel VladimirovichImideev Vitalij AleksandrovichTarasov Vadim Petrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Issledovatel'Skij Tekhnologicheskij Universitet

PROCESSING OF NICKEL SULPHIDE STOCK Russian patent published in 2014 - IPC C22B23/00 C22B15/00 C22B1/02 C22B3/04

Abstract RU 2533294 C1

FIELD: metallurgy.

SUBSTANCE: proposed method comprises mixing of initial stock with alkaline metal chlorides (NaCl, KCl) and low-temperature annealing at 350-400°C for 1.5-2 hours. After annealing, cinder is leached by water with transition of water-soluble copper and cobalt compounds in solution. Annealing makes not only copper and nickel but cobalt as well change into water-soluble sulphates and chlorides.

EFFECT: simplified, non-polluting process.

2 cl, 4 ex

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RU 2 533 294 C1

Authors

Medvedev Aleksandr Sergeevich

Aleksandrov Pavel Vladimirovich

Imideev Vitalij Aleksandrovich

Tarasov Vadim Petrovich

Dates

2014-11-20—Published

2013-04-16—Filed